Home / 28,017.51-38,610.99-20,045.85

Finding the Fourth Proportional to 28,017.51, 38,610.99 and 20,045.85

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Solution

The fourth proportional to 28,017.51, 38,610.99 and 20,045.85 is: 27,625.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.51 : 38,610.99 = 20,045.85 : x
  2. Step 2: Convert to fraction form
    28,017.51/38,610.99 = 20,045.85/x
  3. Step 3: Cross multiply
    28,017.51x = 38,610.99 × 20,045.85
  4. Step 4: Simplify right side
    28,017.51x = 773,990,113.89
  5. Step 5: Solve for x
    x = 773,990,113.89/28,017.51
  6. Step 6: Final answer
    x = 27,625.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.